Txias dov hlau bar ribbed tshuab yog siv los dov nto ntawm cov hlau puag ncig tuav los ua ob lossis peb sab crescent;Cov khoom siv raw: cov hlau tsis tshua muaj carbon hlau puag ncig Siv: lub tshuab no feem ntau dov txoj kab uas hla ntawm 3-8 hli ribbed tuav, nws dav siv hauv tshav dav hlau txoj kev loj, kev lag luam tsim kho;

Lub tshuab no ua cov khoom siv pabcuam rau lub tshuab vuam pob zeb, BRC tshuab vuam; Yog tias koj muaj kev xav tau ntawm cov kab hlau ribbed, xws li tshuab kos duab hlau, tshuab hlau ribbed, hlau ncaj & txiav tshuab ... txais tos tiv tauj peb nrog koj cov kev xav tau; Peb yuav ua cov kev daws teeb meem rau koj raws li;